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A035886 as a simple table

n a(n)
0 1
1 0
2 800
3 0
4 107200
5 0
6 5831520
7 0
8 174074240
9 0
10 3340028320
11 10485760
12 45553842240
13 807403520
14 474040586720
15 22284337152
16 3959316509440
17 344876646400
18 27528013314080
19 3621204787200
20 163698115739072

[1,0,800,0,107200,0,5831520,0,174074240,0,
 3340028320,10485760,45553842240,807403520,
 474040586720,22284337152,3959316509440,
 344876646400,27528013314080,3621204787200,
 163698115739072]

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Last modified December 8 11:31 EST 2021. Contains 349596 sequences. (Running on oeis4.)